Free Construction Cost Control Calculators
Six free calculators for the numbers that decide whether a construction job makes money. No sign-up, nothing stored, nothing sent anywhere — they run entirely in your browser.
Cost control on any job
Committed Cost vs ProgressThe earliest reliable warning that a package will overrun. Compares what you have committed against what you have built, and tells you whether it is OK, WATCH or ACT. Cost Value Reconciliation (CVR)Both margins at once — the one to date, and the more honest committed position that usually moves first. Forecast to CompleteWhat the rest of the package will cost at the rate you are actually achieving, against what budget minus spent would have told you. RetentionHow much is held, what each release is worth, and when each one falls due — including whether the second one is already overdue.FIDIC contracts
Notice and Payment DeadlinesThe two clocks that cost contractors the most money. Your 28-day notice deadline from the date of awareness, and the certification and payment dates that run from the day the Engineer received your Statement — plus how many days you fund the work before any of it comes back. Sub-Clause 12.3 New Rate TestA quantity swing does not earn a new rate on its own. Runs all four cumulative conditions and tells you which one fails — including the case nobody claims, where the quantity fell and your unit rate broke.Why these
Because they are the numbers that move before anything shows up in your accounts.
Cost in your ledger is history: it records invoices received, which is weeks behind work executed. Commitment, achieved rate, the gap between cost and value, and the dates on your retention are all knowable now, today, from information you already have.
The FIDIC pair are deadlines rather than measurements, and they belong here for the same reason: both are knowable today and both become worthless the moment they pass. A notice window that closed is not recoverable with better analysis later.
Each calculator links to the article explaining the method behind it. The complete guide to construction cost management maps how the general ones fit together, and running monthly cost control on a FIDIC contract does the same for the contract-specific ones.